Solution to the n-bubble problem on $$\mathbb {R}^1$$ with log-concave density

Author:

Ross John

Abstract

AbstractWe study the n-bubble problem on $$\mathbb {R}^1$$ R 1 with a prescribed density function f that is even, radially increasing, and satisfies a log-concavity requirement. Under these conditions, we find that isoperimetric solutions can be identified for an arbitrary number of regions, and that these solutions have a well-understood and regular structure. This generalizes recent work done on the density function $$|x |^p$$ | x | p and stands in contrast to log-convex density functions which are known to have no such regular structure.

Funder

Southwestern University

Publisher

Springer Science and Business Media LLC

Subject

Geometry and Topology,Analysis

Reference14 articles.

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2. Blåsjö, V.: The isoperimetric problem. Amer. Math. Monthly 112, 526–566 (2005)

3. Bongiovanni, E., Di Giosia, L., Diaz, A., Habib, J., Kakkar, A., Kenigsberg, L., Pittman, D., Sothanaphan, N., Zhu, W.: Double bubbles on the real line with log-convex density. Anal. Geom. Metr. Spaces 6, 64–88 (2018)

4. Chambers, G.: Proof of the log-convex density conjeture. J. Eur. Math. Soc. 21, 2301–2332 (2019)

5. Huang, J., Qian, X., Pan, Y., Xu, M., Yang, L., Zhou, J.: Isoperimetric problems on the line with density $$|x|^p$$. Rose Hulman Undergrad. Math. J. 20, 1–12 (2019)

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